Fuel system having a connection between a fuel injector and a fuel distribution conduit
a fuel distribution conduit and fuel system technology, applied in the direction of low-pressure fuel injection, low-pressure fuel injection, liquid fuel feeders, etc., can solve the problem that the design change may be limited to altering the outer profile, and achieve the effect of simple construction
Active Publication Date: 2021-09-16
DELPHI TECH IP LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The fuel system described in this patent allows for a strong and reliable connection between a fuel injector and a fuel distribution conduit, even at high pressures. This is achieved through a retention member that engages with the fuel injector and the connection nut to create a tight connection. The design of the fuel system also allows for minimal changes to existing fuel injector designs, making it easier to transition to a metal-to-metal sealing interface without requiring significant manufacturing equipment changes. Overall, this fuel system provides a more efficient and effective way to supply fuel to fuel consuming devices.
Problems solved by technology
Such design change may be limited to altering the outer profile of the fuel injector inlet conduit.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015]Referring initially to FIG. 1, a fuel system 10 is shown in simplified schematic form for supplying fuel to a fuel consuming device, for example an internal combustion engine 12, by way of non-limiting example only, for a motor vehicle. Fuel system 10 includes a fuel tank 14 for storing a volume of fuel, a low-pressure fuel pump 16 which may be located within fuel tank 14 as shown, a high-pressure fuel pump 17 which receives fuel from low-pressure fuel pump 16, a fuel rail 18 attached to internal combustion engine 12 and in fluid communication with high-pressure fuel pump 17, and a plurality of fuel injectors 20 in fluid communication with fuel rail 18. In operation, low-pressure fuel pump 16 draws fuel from fuel tank 14 and pumps the fuel to high-pressure fuel pump 17 under relatively low pressure, for example about 500 kPa. High-pressure fuel pump 17, which may be a piston pump operated by a cam of internal combustion engine 12, further pressurizes the fuel and supplies the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A fuel system includes a fuel injector having an inlet conduit which extends along an inlet conduit axis and has an inlet conduit shoulder which is traverse to the inlet conduit axis. A fuel distribution conduit supplies fuel to the fuel injector, extends along a fuel distribution conduit axis, and has external threads which threadably engage internal threads of a connection nut. The connection nut has an internal shoulder which is traverse to the fuel distribution conduit axis. A retention member is a segment of an annulus and includes a central passage extending axially therethrough. The retention member is terminated in a direction circumferentially about the fuel distribution conduit axis by first and second end surfaces which together form a retention member slot therebetween sized to permit the inlet conduit to pass therethrough in a direction perpendicular to the fuel distribution conduit axis.
Description
TECHNICAL FIELD OF INVENTION[0001]The present disclosure relates to a fuel system; more particularly to such a fuel system which includes a fuel injector and a fuel distribution conduit; and even more particularly to such a fuel system which provides a fuel-tight connection between the fuel injector and the fuel distribution conduit.BACKGROUND OF INVENTION[0002]Fuel injection systems that deliver fuel to fuel consuming devices, for example internal combustion engines, have been known for many years. In modern internal combustion engines, it is increasingly common to provide fuel injectors which inject fuel, for example gasoline, directly into combustion chambers of the internal combustion engine. These internal combustion engines commonly include multiple combustion chambers, and consequently, each combustion chamber is provided with a respective fuel injector to inject fuel therein. A common conduit, typically referred to as a fuel rail, includes an inlet which receives fuel from a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): F02M69/46F02M61/14F02M61/10F02M55/00
CPCF02M69/462F02M61/14F02M2200/856F02M55/005F02M61/10F02M61/168F02M2200/853
Inventor MASTI, RAVISH S.
Owner DELPHI TECH IP LTD